[mjannusch]

I've got mine set up with Boost Compensation. At the dyno I had them step up the speed hold of the dyno by 500 rpm at a time and gave it WOT on wastegate boost pressure (about 10 psi on my setup) and tweaked the fuel for my desired A/F targets. Works pretty darn well...

Then you can just set all the columns to match the row that you tweaked on the dyno, and use either Throttle Position Mod to subtract more fuel at low throttle positions to get you leaner when just cruising or at low loads - or modify the Boost Fuel Correct table (boost comp) on the low end to subtract more fuel.

Makes it dirt-simple to set up a fuelling map. The throttle-mod method doesn't work so great if you've got small turbos that spool like crazy as you could be at small throttle positions and still get lots of boost.